immobilization

noun
im·​mo·​bi·​li·​za·​tion
variants: also British immobilisation \ im-​ˌō-​bə-​lə-​ˈzā-​shən How to pronounce immobilisation (audio) \

Medical Definition of immobilization

: the act of immobilizing or state of being immobilized: as
a : quiet rest in bed for a prolonged period used in the treatment of disease (as tuberculosis)
b : fixation (as by a plaster cast) of a body part usually to promote healing in normal structural relation